Move the decimal so there is one non zero digit to the left of the decimal point. The number of decimals place you move will be the exponent on the 10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive
It is true that they are congruent. Side JK and PM are congruent to each other JK = 25 PM is divided into two measurements=19 and 6. So PM is 19 + 6 = 25 Therefore JK = PM
The line is positive because it is going upwards. The y-intercept is positive 3. It can be found by seeing where the line intercepts the y-axis. The slope of the line is 2 and it can be found by using "rise over run."
(I saw the image on another question you had asked. Have a nice day!)
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